[FFmpeg-devel] ICC version checks

[Carl Eugen Hoyos]

Thilo Borgmann <thilo.borgmann <at> googlemail.com> writes:

> > icc 11.1 64 bit miscompiles vc1_mc_4mv_chroma() in vc1dec.c (all
> > optimisations, this is Intel issue 556938) and decode_var_block_data() in
> > alsdec.c (only for -O3, not yet reported to Intel).
> 
> Miscompiles? So maybe there's a suitable workaround?

Just add a "#pragma optimize ( "", off )" and "on" around the opening brace of
the functions.

> What exactly is miscompiled in decode_var_block_data(), do you know
> that?

I have no idea.

Carl Eugen